assume cs:code, ds:data
data segment
    db 'BaSiC'
    db 'InForMaTion'
data ends
code segment
    start: mov ax, data
            mov ds, ax
            
            mov bx, 0
            mov cx, 5

        s: mov al, [bx]
            and al, 11011111B
            mov [bx], al
            inc bx
            loop s
        
            mov bx, 5
            mov cx, 11
        
        s0: mov al, [bx]
            or al, 00100000B
            mov [bx], al
            inc bx
            loop s0

            mov ax, 4c00h
            int 21h
code ends
end start